JP2534554Y2 - Punch press - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch press having a plurality of types of punches and dies.

[0002]

2. Description of the Related Art In a conventional punch press, a processing position is fixed, a carriage base provided on a work table is moved in one axis direction, and a carriage provided with a work clamp provided on the carriage base is transferred to a carriage. The work clamped by the work clamp is moved in a direction perpendicular to the ledge base, and the work clamped by the work clamp is moved in the biaxial directions to be positioned at the processing position and perform punching. In order to cope with complicated punching, a plurality of types of punches and dies are housed in an upper turret and a lower turret, respectively, and the upper and lower turrets are configured to be able to rotate to a processing position to cope with them.

In a ram moving type punch press, a work is moved in one axis direction, a punch and a die are moved in another axis direction, and a ram is moved along the punch. Was configured to.

[0004]

However, in the former punch press described above, in order to perform punching at any position of the work, a work table having at least about four times the size of the work must be provided. Not
There is a problem that the size of the punch press is deviated from the size reduction and the installation area is not reduced.

A ram-movable punch press, which is the latter of the above-described punch presses, requires only two times the work table because the work can be moved in one axial direction. However, it is necessary to provide a plurality of types of punches and dies. However, there is a problem that complicated punching cannot be performed.

The present invention has been made in view of the above circumstances, and aims at minimizing the installation area of a punch press, accommodating a large number of types of punches and dies, and achieving complicated punching. It is intended to provide a punch press that can be processed.

[0007]

In order to achieve the above object, a punch press according to the present invention moves a work clamp and a carriage in one axis direction and moves a punch holder and a die holder in another axis direction. A plurality of types of punches are stored in the punch holder, a plurality of types of dies corresponding to the plurality of types of punches stored in the punch holder are stored in the die holder, and the punch holder and the die holder are rotatably movable. It is characterized by having been provided.

[0008]

According to the punch press constructed as described above, a plurality of types of punches are stored in one punch holder, and a die holder storing a plurality of types of dies corresponding to these punches is combined with each other to form a work. The punch holder and the die holder are rotated and the ram is moved directly above these punches and dies to perform punching. Therefore, various types of punching can be performed, and the workpiece can be positioned in one axis direction. Good punch press with small installation area.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 5, a punch press 1 is provided with a work table 3 extending in the left-right direction (X-axis direction) of the figure, and a frame provided substantially at the center of the work table 3 and at a right angle. 5.

The work table 3 is a table on which a work W to be processed is placed. The work table 3 has a length approximately twice as long as the length of the work W in the longitudinal direction. A work moving device 7 for moving and positioning is provided. The work moving device 7 is provided on a lower side of a substantially center of the work table 3 along the X-axis direction, a ball screw 9 for operating the ball screw 9, and moves in the X-axis direction by engaging with the ball screw 9. And a work clamp 15 provided in the carriage 13.

The frame 5 is a portal frame which is installed at right angles to the work table 3 and comprises an upper frame 17 provided above the frame 5 and a lower frame 19 provided below. The two upper and lower frames 17 and 19 are divided into two with the work table 3 as a boundary. The upper frame 17 is provided with a punch holder driving device 23 for moving the punch holder 21, and the lower frame 19 is provided with a die holder driving device 27 for moving the die holder 25. Each of these driving devices is composed of a ball screw 29 for moving the punch holder and the same motor 31, and a ball screw 33 for moving the die holder and the same motor 35. The punch holder 21 is arranged in the Y-axis direction along the upper The die holder 25 is configured to be movable in synchronization with each other in the Y-axis direction along the lower frame 19 (the punch holder 21 side is shown in FIG. 5, but the die holder 25 is located immediately below the punch holder 21). There is only a sign because there is.)

At one end (lower side in FIG. 5) of the frame 5, a die magazine 37 for separately storing the punch holder 21 and the die holder 25 is provided. A punch holder 21 having one or a plurality of punches and dies, and a die holder 25 are housed in 37. The punch holder 21 and the die holder 25 in the mold magazine 37 are exchanged by a known work changer 39 interposed between the mold magazine 37 and the frame 5.

As shown in FIG. 1, the upper frame 17 includes left and right side plates 41R and 41L which are erected at right angles to the X-axis direction of the work table 3, and
Inwardly protruding plates 43R, 43 provided below R, 41L.
L and two inwardly projecting plates 43R, 43L.
Are arranged in parallel with each other with a predetermined gap. Ram moving support members 45R and 45L are provided on the upper surfaces of the distal ends of the inwardly protruding plates 43R and 43L. The ram moving support members 45R and 45L are guide rail-like members provided in parallel with each other in the Y-axis direction (front and back sides of the paper), and the width of the work table 3 along the upper frame 17 in the Y-axis direction. It is formed.

A ram cylinder mounting base 49 is movably provided on the ram moving supporting members 45R and 45L via mounting sliding members 47R and 47L. The ram cylinder mounting pedestal 49 is a pedestal that supports the ram cylinder 51 so as to be able to move up and down. The upper part is made of a cylindrical body, the ram cylinder 51 is inserted therein, and the lower part is provided with a disk part 53 formed in a flange shape.
A plurality of reinforcing ribs 55 are provided on the lower surface side of the disk portion 53. Of the plurality of ribs 55 provided, the rib 55 provided in the X-axis direction from the center is provided with a pin hole 59 for engaging a tip of a shot pin 57 described later.

At the lower end of the ram cylinder 51, a striker 63 is provided via a striker shift device 61 so as to be shifted in the axial direction. The striker shift device 61 includes a base disk 65 approximately equal in diameter to the ram cylinder 51 and a shift cylinder 67 for shifting the base disk 65 in the X-axis direction. However, the base disk 65 receives the pressing force of the ram cylinder regardless of the shift, and can transmit the pressure to the striker 63 provided on the base disk 65.

The upper frame 17 constructed as described above
A guide side plate 69 is fixed to one of the side plates 41R, and a punch holder moving support member 71 for moving the punch holder 21 is provided below the guide side plate 69 in at least two upper and lower stages in the Y-axis direction. It is. The punch holder moving support member 71 includes a punch holder mounting sliding member 73.
, A punch holder arm 75 is movably provided. The punch holder arm 75 has a storage section 77 for storing the punch holder 21 at the distal end.
Is an approximately L-shaped member having an arm portion 79 extending on one side thereof and an upright portion 81 provided at a rear end portion thereof. On the arm portion 81, a punch holder rotating as a driving source of a punch holder rotating device 83 is provided. A motor 85 and a shot pin driving cylinder 89 as a ram cylinder moving device 87 are provided.
In addition, the punch holder arm 75
A ball screw nut 91 for screwing with the punch holder moving ball screw 29 for axial movement is provided.

In such a configuration, when the punch holder moving ball screw 29 is rotated, the punch holder arm 75 screwed thereto is moved in the Y-axis direction along the punch holder moving support member 71. At this time, if the shot pin 57 of the shot pin driving cylinder 89 constituting the ram cylinder moving device 87 is engaged with the pin hole 59 provided in the ram cylinder mounting base 49, the punch holder arm 75 can be moved. In response, the ram cylinder 51 moves in the upper frame 17 in the Y-axis direction.

The punch holder rotating device 83 is driven by a punch holder rotating motor 85 so that a worm gear 93 provided at the tip of a rotating shaft meshes with a worm wheel 95 provided on the punch holder 21. Is a device for rotating the inside of the storage portion 77 of the punch holder arm 75.

The punch holder 21 has a flange portion 97 at the top.
And a punch 101 provided in the holder 99 so as to be vertically movable. The worm wheel 95 is provided on a side surface of the flange portion 97, and is rotated via a bush 103 in the storage portion 77 by driving of a punch holder rotating motor 85 of the punch holder rotating device 83. .

The punch 101 has a housing 105 on the outer periphery thereof. An upper die 101 is formed at the tip in the housing 105, and a main body having a shaft portion 106 and a pressure receiving portion (head) 104 at the rear portion. And a coil spring 107 provided between the back side of the pressure receiving portion 104 and the upper end surface of the housing 105. When a pressing force is applied on the pressure receiving portion 104, the punch body descends downward, and the housing 10.
The upper die (punch) 101 protrudes from the lower end surface of the workpiece 5, and punches the work W.

A key groove 109 is formed in a part of the outer peripheral surface of the housing 105 of the punch 101, and is fixed to the holder 99 via the key groove 109. A metal fitting 111 having a funnel cross section is provided below the projecting step on the upper part of the housing 105 of the punch 101, and a shock absorber 113 is provided at an upper end of the metal fitting 111. The shock absorber 113 includes a guide shaft 115 and a coil spring 117 so as to reduce the impact of the striker 63 of the ram cylinder 51.

FIG. 2 shows a work table 3 of the punch press 1.
2 shows a frame structure provided under the. A lower frame 19 is provided below the work table 3 at a position symmetrical to the upper frame 17 (see FIG. 1). The lower frame 19 is composed of two parallel side plates 11 arranged on the left and right.
9R, 119L and inwardly protruding plates 121R, 121
L and two inwardly projecting plates 121R and 121R.
1L, an opening 123 is provided. Reinforcing ribs 125R and 125L are arranged at predetermined intervals on the lower right and left sides of the opening 123 in front and back directions (Y-axis direction) in the figure. is there. Upper side plates 127R and 127L provided in parallel with each other are provided upright on the left and right sides of the opening 123 in the Y-axis direction.

A guide side plate 129 is provided on one side (the right side in FIG. 2) of the lower frame 19, and on the side surface located above the guide side plate 129, they are juxtaposed in the Y-axis direction. Die holder moving support member 131
Has been fixed. This die holder moving support member 131
The die holder sliding support member 133 is attached to the, and the die holder moving support member 133 is provided with a movable member 135 which is screwed to the die holder moving ball screw 33 in the Y-axis direction. The movable member 135 has a support shaft 139 protruding from the upper surface of a protruding plate 137 protruding laterally at the center, and a die holder arm 143 is attached to the support shaft 139 via a coil spring 141. . A die holder accommodating portion 145 for accommodating the die holder 25 is provided at a distal end portion of the die holder arm 143. The die holder 25 is rotatably accommodated in the die holder accommodating portion 145.

The die holder 25 is provided in the die holder housing 1.
The cylindrical member 147 is rotatably housed in the cylindrical member 45, and a flange member 149 is installed in the cylindrical member 147. A worm wheel 151 is provided on an end face of the flange member 149. A die 153 serving as a lower mold is attached to the center of the upper surface of the flange member 149, and a die holder cover 155 covering the flange member 149 is attached from the periphery of the die 153. The notch 16 through which the worm gear 159 of the die holder rotating motor 157 provided on the die holder arm 143 is inserted.
1 is formed.

The thus configured die holder 25 is
The worm wheel 151 is moved via the die holder rotating motor 157 of the die holder rotating device 163 and the worm wheel 151 via the worm gear 159 by being moved in the Y-axis direction along the die holder moving support member 131 by the die holder moving ball screw 33 of the die holder driving device 27. And rotated. Therefore, by synchronizing the movement between the punch holder arm 75 (see FIG. 1) and the die holder arm 143 with the punch holder moving motor 31 and the die holder moving motor 35, the punch holder 21 and the die holder 25 are simultaneously in the same direction. Can be moved the same distance. Also, the shot pin 5 of the punch holder arm 75
Since the ram cylinder 51 can be moved together on the punch holder 21 by the ram cylinder moving device 87 that engages the ram cylinder mounting base 49 with the ram cylinder mounting base 49, the work W is punched at any position in the Y-axis direction. be able to.

The punch 101 accommodated in the punch holder 21 is generally used from 1/2 ″ to 41/2 ″.
One or four to five pieces are accommodated as a set as the maximum size of 4 1/2 "of the five types described above. The one shown in FIG. 3 has five 1/2" sizes, and the one shown in FIG. It accommodates four pieces of 4 1/4 "size, which enables various types of punching. In addition, a die 153 serving as a lower mold is similarly assembled. Needless to say.

Each of these punches has a housing 10
5, a punch 101 having a pressure receiving portion 104 is housed therein, and if the outer diameter of the housing 105 is unified, replacement with a holder is also possible.

The operation when the punch holder 21 shown in FIG. 3 is mounted on the punch press 1 shown in FIG. 1 will be described below.

The pressure receiving portion 104 is connected to the X
When the punch is set in the axial direction, the center punch position and the shot pin 57 on the punch holder arm 75 are aligned on a straight line, and the ram cylinder mounting base 49 is moved by the shot pin 57. 104. Therefore, if the work W is positioned in the X-axis direction and a predetermined punching process is performed, and then the striker 63 is shifted by the shift cylinder 67, the striker 63 is shifted onto the next pressure receiving portion 104 and subjected to the punching process. Punch holder 2
In order to perform the punching arranged in the Y-axis direction in 5, the punch holder 25 is rotated by 90 ° by the punch holder rotating motor 85 of the punch holder rotating device 83 so that the punch is first placed in the Y-axis direction. Since the pressure receiving unit 104 is rotated in the X-axis direction, the following describes the striker shift device 61.
Punching can be performed. At this time, the die holder 25 may be simultaneously rotated.

FIG. 6 shows another embodiment of the present invention. The punch press 171 of this embodiment is the same as the punch press 1 of the above embodiment.
Instead of the mold magazine 37, the punch holder 21 and the die holder 25 are mounted on an endless chain 173 in two stages, upper and lower, and one stage of the chain 173 is circulated along the frame 5. Therefore, in this embodiment, the upper frame 1 shown in FIG. 1 is used without using the ball screw for moving the punch holder and the ball screw for moving the die holder.
The supporter of the punch holder 21 may slide on the punch holder moving support member 71 of the guide side plate 69 of FIG. One shot pin 57 is always provided on the punch holder 21 side, and the ram cylinder mounting base 49 is engaged with the shot pin 57.

On the other hand, the punching can be performed by moving the die holder 25 on the upper side plate 127 of the lower frame 19 with a supporter engaged with the die holder moving support member 131 shown in FIG.

As described above, the punch presses 1 and 171 of this embodiment are provided with the punch holder 21 provided with a plurality of types of punches 101 and the die holder 25 provided with a plurality of types of dies 133, and mounted on a ram cylinder. By moving the pedestal 49 together with the pan holder 21 and shifting the striker 63 of the ram cylinder 51 in the X-axis direction, there is a feature that complicated punching can be easily performed.

The present invention is not limited to the above-described embodiment, but can be implemented in other modes by making appropriate changes.

[0035]

As described above, according to the present invention, since the configuration is as described in the claims for utility model registration, the installation area of the punch press is minimized, and a large number of punches and There is an advantage that the die can be accommodated and complicated punching can be easily performed.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a punch press according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a structure of a die holder arranged below the punching press of FIG.

FIG. 3 is a sectional view of another embodiment of the punch holder of FIG. 1;

FIG. 4 is an outside schematic view of another embodiment of the punch holder of FIG. 3;

FIG. 5 is a plan view showing the outline of the punch press shown in FIG. 1;

FIG. 6 is a plan view schematically showing a punch press according to another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1,171 Punch press 3 Work table 5 Frame 7 Work moving device 13 Carriage 15 Work clamp 21 Punch holder 23 Punch holder driving device 25 Die holder 27 Die holder driving device 61 Striker shift device 63 Striker 83 Punch holder rotating device 87 Ram cylinder moving device 101 Punch 53 Die 163 Die holder rotating device

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location B30B 15/06 B30B 15/06 Z

Claims (1)

(57) [Scope of request for utility model registration] 1. A punch press for moving a work clamp and a carriage in one axis direction and moving a punch holder and a die holder in another axis direction among two axes orthogonal to each other. A plurality of types of dies corresponding to a plurality of types of punches stored in the punch holder are stored in the die holder, and the punch holder and the die holder are rotatably provided. Punch press.